ChemInform Abstract: PREPARATION OF DIMETHYL TETRACHLOROTEREPHTHALATE

Simonov, V. D.; Иванов, В. И.; Voronkova, L. V.; Popova, N. F.; Pavlovich, V. N.

doi:10.1002/chin.197912205

Cited by 7 publications

(11 citation statements)

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“…Recently some arguments have been given in favour of additional linear potential at small r [16] and it was explicitly found from P-NP interference in [17] to be of the magnitude which effectively resolves the discrepancy and confirm the linear NP potential at all r.…”

Section: Static Interactionmentioning

confidence: 91%

Determination ofαs(1 GeV)from the charmonium fine structure

Бадалян¹,

Morgunov

1999

Phys. Rev. D

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The strong coupling constant αs(µ) is extracted from the fits to charmonium spectrum and fine structure splittings. The relativistic kinematics is taken into account and relativistic corrections are shown to increase the matrix elements defining spin effects up to 40%. The value of αs(µ) at low-energy scale µ = 1.0 ± 0.2 GeV was found to be αs(µ) = 0.38 ± 0.03(exp.) + 0.04(theor.) which is about 50% lower than standard perturbative two-loop approximation and is in good agreement with the freezing αs behaviour.11.10. Jj, 11.15Bt, 12.38.Lg

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Section: Static Interactionmentioning

confidence: 91%

Determination ofαs(1 GeV)from the charmonium fine structure

Бадалян¹,

Morgunov

1999

Phys. Rev. D

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“…As it is, we suggest the way, where the treatment of the boost is extremely simple, so that one can directly reformulate the results obtained in the rest frame. This work for the PDF's of different baryons is now in the process [42]. The next step: the interaction of two complexes boosted with respect to each other is a much more complicated problem, the first conclusions on the behavior of the decay amplitudes and formfactors were given in [8].…”

Section: Conclusion and Prospectivesmentioning

confidence: 99%

Nonperturbative parton distributions and the proton spin problem

Simonov

2016

Phys. Atom. Nuclei

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The Lorentz contracted form of the static wave functions is used to calculate the valence parton distributions for mesons and baryons, boosting the rest frame solutions of the path integral Hamiltonian. It is argued that nonperturbative parton densities are due to excited multigluon baryon states. A simple model is proposed for these states ensuring realistic behavior of valence and sea quarks and gluon parton densities at Q 2 = 10(GeV /c) 2 . Applying the same model to the proton spin problem one obtains Σ 3 = 0.18 for the same Q 2 .

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“…These corrections are not taken into account above, which is planned for a subsequent work, where also hyperon semileptonic decays are considered [16].…”

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confidence: 99%

Nucleon matrix elements and baryon masses in the Dirac orbital model

Simonov

Trusov

2009

Phys. Atom. Nuclei

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Using the expansion of the baryon wave function in a series of products of single quark bispinors (Dirac orbitals), the nonsinglet axial and tensor charges of a nucleon are calculated. The leading term yields $g_A = 1.27$ in good agreement with experiment. Calculation is essentially parameter-free and depends only on the strong coupling constant value $\alpha_s$. The importance of lower Dirac bispinor component, yielding 18% to the wave function normalization is stressed. As a check, the baryon decuplet masses in the formalism of this model are also computed using standard values of the string tension $\sigma$ and the strange quark mass $m_s$; the results being in a good agreement with experiment.Comment: 8 pages, 2 tables; LaTeX2

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ChemInform Abstract: PREPARATION OF DIMETHYL TETRACHLOROTEREPHTHALATE

Abstract: Die Chlorierung von Hexachlor‐p‐xylol (I) mit gasförmigem Chlor in Chlorsulfonsäure in Gegenwart von 5% Iod ergibt bei einer Reaktionstemperatur von 30°C eine 85%ige Ausbeute an Tetrachlorterephthalsäuredichlorid (II).

Cited by 7 publications

References 0 publications

Determination ofαs(1 GeV)from the charmonium fine structure

Determination ofαs(1 GeV)from the charmonium fine structure

Nonperturbative parton distributions and the proton spin problem

Nucleon matrix elements and baryon masses in the Dirac orbital model

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